Abstract
We report on experimental evidence of unidirectional transmission of terahertz waves through a pair of metallic gratings with different periods. The gratings are optimized for a broadband transmission in one direction, accompanied with a high extinction rate in the opposite direction. In contrast to previous studies, we show that the zero-order nonreciprocity cannot be achieved. Nonetheless, we confirm that the structure can be used successfully as an asymmetric filter.
© 2013 Optical Society of America
Full Article | PDF ArticleMore Like This
Dmitriy Yavorskiy, Marcin Stolarek, Jerzy Łusakowski, and Rafał Kotyński
Opt. Express 22(25) 30547-30552 (2014)
J. Gómez Rivas, P. Haring Bolivar, and H. Kurz
Opt. Lett. 29(14) 1680-1682 (2004)
Andriy E. Serebryannikov, Evrim Colak, A. Ozgur Cakmak, and Ekmel Ozbay
Opt. Lett. 37(23) 4844-4846 (2012)